Home Postcode finder NSW West Haven West Haven postcode NSW West Haven is a locality in New South Wales covered by postcode 2443. Postcode 2443 State or territory New South Wales (NSW) Region NSW North Coast Add a free West Haven business listing Be the first listing in West Haven Common questionsWhat is the postcode for West Haven?West Haven, NSW has the postcode 2443.What state is West Haven in?West Haven is in New South Wales (NSW).Does postcode 2443 cover more than one suburb?Yes. Postcode 2443 covers 19 localities, so the postcode alone does not identify West Haven. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.